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LMX2615-SP: What IBIS do I use for this Part "MPR" or "MLS".

Joseph Sanchez
Intellectual 335 points
Part Number: LMX2615-SP

Tool/software:

Hello, what IBIS model are we to use for the 5962R1723601VXC part in our design.  The "MPR" or "MLS" version?

Thanks,

  • 0
    TI__Guru** 102910 points

    Hi Joseph,

    There is no MLS anymore, or MLS is actually VXC. 

    MPR is the engineering mode version of VXC.

    Engineering samples (LMX2615W-MPR) have the same package, pinout, programming, and typical performance as the flight devices (LMX2615W-MLS). They are tested at room temperature to meet the electrical specifications, but have not received or passed the full space production flow or testing. Engineering samples may be QCI rejects that failed full space production tests, such as radiation or reliability.

    In short, the IBIS model is same for both VXC and MPR device.

    Please note, IBIS models the pin's characteristic, it is not intended for RF simulation use.

  • 0 in reply to Noel Fung
    Intellectual 335 points

    I've noticed the MLS gives less amplitude than MPR on the output.  Seems like we should be using MLS version of the IBIS since we want the flight devices.  However, it sounds like you're saying the IBIS model is not suitable for RF simulations.  RF is considered anything between 3kHz and 300GHz so doesn't that indicate you can only use the model below 3kHz?

  • 0 in reply to Joseph Sanchez
    TI__Guru** 102910 points

    Hi Joseph,

    If you want to do matching design or want to check the waveform at RFout, this model is not able to support.

    This model is good for SPI and IO simulation.